Let's consider a plain JavaScript object, holding simple information, like a name and a parent's name. The following snippet shows how we define the person object in normal JavaScript:

import { fromJS } from 'immutable';
 
// Normal Javascript
const person = {
  name: 'Yoshmi Mukhiya',
  parents: [
    {
     type: "Mother",
            name: "Anju Mukhiya",
    },
    {
     type: "Father",
            name: "Suresh Kumar Mukhiya"
    }
  ]
};

const immutablePerson = fromJS(person); 

We can use fromJS to convert any normal JavaScript to immutable JS.